Acute Carbon Monoxide Poisoning Management — free guideline decision tool
This tool gives the oxygen and hyperbaric-oxygen direction for acute carbon monoxide poisoning, by hyperbaric indications and pregnancy.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Hyperbaric-oxygen indications (loss of consciousness/neurologic abnormality/myocardial ischemia/COHb ≥ 25%/severe acidosis) | Any present |
|---|---|
| Pregnancy | No |
→DispositionHyperbaric oxygen (HBO) evaluation + 100% oxygen
- Immediate (all)：Remove from exposure; high-flow 100% oxygen (non-rebreather reservoir mask, regardless of pulse oximetry/PaO₂) until symptoms resolve and COHb < 10% (lower threshold with cardiopulmonary impairment); intubate and give 100% oxygen if comatose/unable to protect the airway (CO half-life: room air 4–6 h, 100% oxygen 60–90 min, hyperbaric oxygen 20–30 min)
- HBO indications：Consider hyperbaric oxygen (HBO, on top of 100% oxygen) as early as possible within 6 h for any of: loss of consciousness/syncope, neurologic abnormality (focal/cognitive/altered consciousness/seizure), myocardial ischemia (chest pain/ECG/troponin), COHb ≥ 25%, severe metabolic acidosis — this case qualifies, transfer to HBO promptly
- Monitoring/assessment：ECG, troponin; arterial COHb (pulse oximetry cannot distinguish COHb, SpO₂ unreliable); assess neurocognition
Common questions
What is Acute Carbon Monoxide Poisoning Management?
This tool gives the oxygen and hyperbaric-oxygen direction for acute carbon monoxide poisoning, by hyperbaric indications and pregnancy.
How is Acute Carbon Monoxide Poisoning Management calculated? What is the core formula?
All → high-flow 100% oxygen until symptoms resolve and COHb < 10%. HBO if loss of consciousness/neurologic abnormality/myocardial ischemia/COHb ≥ 25%/severe acidosis, ideally within 6 h. Pregnancy → HBO at COHb ≥ 15–20% or fetal distress.
When is Acute Carbon Monoxide Poisoning Management used?
Use to start high-flow 100% oxygen for everyone and to decide who needs hyperbaric oxygen, with a lower threshold in pregnancy.
What are the key clinical points for Acute Carbon Monoxide Poisoning Management?
Pulse oximetry cannot distinguish carboxyhemoglobin, so arterial COHb must be measured rather than relying on SpO₂. (original synthesis · not guideline verbatim) Hyperbaric oxygen targets reduction of delayed neurocognitive sequelae and is given as early as possible within 6 h. Enclosed-fire smoke inhalation raises suspicion of concomitant cyanide poisoning warranting hydroxocobalamin.
What are the limits and cautions when using Acute Carbon Monoxide Poisoning Management?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
How is Acute Carbon Monoxide Poisoning Management calculated in practice? Can you show a worked example?
Inputs: Hyperbaric-oxygen indications (loss of consciousness/neurologic abnormality/myocardial ischemia/COHb ≥ 25%/severe acidosis) Any present, Pregnancy No → Result: Disposition Hyperbaric oxygen (HBO) evaluation + 100% oxygen（Immediate (all): Remove from exposure; high-flow 100% oxygen (non-rebreather reservoir mask, regardless of pulse oximetry/PaO₂) until symptoms resolve and COHb < 10% (lower threshold with cardiopulmonary impairment); intubate and give 100% oxygen if comatose/unable to protect the airway (CO half-life: room air 4–6 h, 100% oxygen 60–90 min, hyperbaric oxygen 20–30 min), HBO indications: Consider hyperbaric oxygen (HBO, on top of 100% oxygen) as early as possible within 6 h for any of: loss of consciousness/syncope, neurologic abnormality (focal/cognitive/altered consciousness/seizure), myocardial ischemia (chest pain/ECG/troponin), COHb ≥ 25%, severe metabolic acidosis — this case qualifies, transfer to HBO promptly, Monitoring/assessment: ECG, troponin; arterial COHb (pulse oximetry cannot distinguish COHb, SpO₂ unreliable); assess neurocognition）
Run Acute Carbon Monoxide Poisoning Management now
This tool gives the oxygen and hyperbaric-oxygen direction for acute carbon monoxide poisoning, by hyperbaric indications and pregnancy.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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